275results about "Headers" patented technology

The invention relates to a multi-modal fusion corn harvester header height adaptive adjustment method and system, and belongs to the technical field of automation control, the method comprises the following steps: using a binocular camera to collect crop images, and preprocessing the crop images to obtain a depth map; the image is input into a YOLOV8n model, and coordinates of a center point at the bottom of a bounding box of the corncob are obtained through model operation; performing plane fitting on the depth map to obtain a ground height; calculating a corn ear height initial value based on the ground height and the center point coordinate; vibration data of working of the harvester is collected to perform vibration compensation on the initial height value to obtain a height correction value; and dynamically adjusting the header height of the harvester by adopting a dynamic fuzzy PID algorithm based on the correction value. According to the method, the target detection model and the dynamic fuzzy PID algorithm are combined, so that the problems of low visual detection precision and control response lag of existing agricultural machinery in a complex field scene are solved, and crop loss in harvesting operation is effectively reduced.

The invention discloses a harvester header height control method and system based on multi-source sensing information fusion, and belongs to the field of agricultural machinery automation control. The problems that in the prior art, actually-measured height detection deviation is large, and the height detection data source is single are solved, the longitudinal height and the transverse inclination angle of the header are calculated and adjusted in real time through multi-source sensor data, the accuracy of the height and the posture of the header is guaranteed from multiple dimensions so as to adapt to the complex working environment, and the working efficiency is improved. The precise control process of a hydraulic loop driving system on longitudinal and transverse hydraulic cylinders is defined, a reasonable height difference threshold value and a reasonable angle difference threshold value are set, fine regulation and control of the height of the header are achieved, abnormal conditions such as crop cutting missing and soil shoveling are reduced, crop and topographic feature points are extracted through a visual detection system and a deep convolutional neural network, and the accuracy of crop cutting is improved. A terrain curve and an operation plane can be accurately constructed, accurate operation path guidance is provided for a header, the accuracy and quality of harvesting operation are effectively improved, and the loss rate is reduced.

The utility model discloses a corn header ear picking frame with a flail knife structure, which comprises a gear box arranged on a corn harvester, and further comprises a header mechanism for harvesting corn, an ear picking mechanism for guiding corn ear picking and a flail knife mechanism for smashing corn stalks and returning the corn stalks to the field, the header mechanism is assembled on one side of the gearbox, the ear picking mechanism is arranged on the lower portion of the end, away from the gearbox, of the header mechanism, and the flail knife mechanism is arranged on one side of the lower portion of the header mechanism corresponding to the ear picking mechanism. The corn harvester is simple and convenient to adjust, easy to overhaul, small in number of transmission structures, small in occupied space and small in power loss, the ear picking mechanism is matched with the flail knife mechanism, cut stalks can be smashed and returned to the field in the harvesting operation process, multiple functions are achieved through one-time operation, and the operation efficiency is improved.

A header assembly (200) for an agricultural vehicle, the header assembly comprising: a header (201) comprising a lower surface (203); and at least one gauge wheel assembly comprising: a gauge wheel (222); and a coupling mechanism (226) coupling the gauge wheel (222) to the header (201), the coupling mechanism (226) including: a hydraulic cylinder (230) configured to selectively extend from a retracted configuration towards an extended configuration to urge a lower edge of the gauge wheel (222) below and away from the lower surface (203) of the header (201); and a biasing element (228) arranged to bias the hydraulic cylinder (230) to the retracted configuration.

The invention relates to the technical field of agricultural machinery, and discloses a corn non-row-control harvester header intelligent lifting device which comprises a header body and a vehicle body, a fixing block is fixedly connected between the header body and the vehicle body, and the bottom side of the fixing block is fixedly connected with a second connecting block. A first connecting block is fixedly connected to the end, away from the fixing block, of the second connecting block, a first rotating shaft is fixedly connected to the bottom of the header body, an angle adjusting assembly and an anti-winding assembly are arranged between the header body and the second connecting block, and a lubricating assembly is arranged at the top of the vehicle body. A first motor is fixedly connected to the outer wall of the vehicle body. Through cooperation of a laser radar, an ultrasonic sensor, a controller, a first motor, a gear, a rack, a fixing block and other structures, accurate height adjustment and stable lifting of the header are achieved, and improvement of corn harvesting quality and operation efficiency is facilitated.

The invention discloses a harvester header height pre-judgment type adjusting system and method and a harvester, and relates to the technical field of harvester header height adjusting.In the system, a look-ahead sensing module is used for detecting terrain data in real time and generating a terrain profile map according to the terrain data in front of the harvester; the multi-parameter acquisition module is used for acquiring the vehicle speed of the harvester and the crop density and crop humidity data in front of the harvester in real time; the central control module is used for receiving and performing multi-parameter fusion and pre-judgment control on the terrain profile map, the vehicle speed, the crop density and the crop humidity data to generate a hydraulic control instruction; the hydraulic execution module is used for receiving the hydraulic control instruction and adjusting the header height of the harvester according to the hydraulic control instruction. According to the method, the problems of sensing range limitation and hydraulic delay are solved through terrain change pre-judgment and multi-parameter fusion control, and the harvesting quality and the operation efficiency under the complex working condition are improved.

The utility model relates to a cutting device of a corn harvesting header, and belongs to the technical field of agricultural harvesters. According to the technical scheme, the stem pulling device comprises a left stem pulling roller assembly and a right stem pulling roller assembly which are axially symmetrically arranged on a rack body, each stem pulling roller assembly comprises a stem pulling roller main shaft, a stem pulling plate, cutters and a spiral conveying shaft, the rear end of each stem pulling roller main shaft is in meshed connection with a gearbox, the spiral conveying shafts are arranged at the front end of each stem pulling roller main shaft, and the cutters are evenly fixed to the outer surface of each stem pulling roller main shaft; the cutters are connected end to end to form an annular structure, and the head end of each cutter extends outwards and is provided with an inclined edge. A stem pulling plate is arranged on the outer side of each cutter and is a bent plate composed of a transverse plate and a vertical plate, the transverse plates are fixed to the outer surfaces of the cutters, and the vertical plates are adjacent to the head ends of the cutters. According to the corn stalk cutting device, the cutting device is simplified, a cutter box body does not need to be independently arranged, corn stalks can be directly pulled and cut up through the stalk pulling roller, the structure is simple, and the manufacturing cost is low.

According to the anti-winding hemp harvester header, the first cutter disc and the rotary header are arranged on the cutting side of the rack, the first cutter disc is provided with the first cutting teeth distributed in the circumferential direction, the second cutter disc parallel to the first cutter disc is arranged on the rotary header, and the second cutter disc is provided with the second cutting teeth arranged in the circumferential direction; the first cutting edges on the first cutting teeth and the second cutting edges on the second cutting teeth are oppositely arranged, and in the using process, the rotary header rotates in the direction of the second cutting edges so as to cut hemp stalks. Due to the fact that the first cutting teeth can support the bast fiber stalks, the cutting quality can be improved in the cutting process, broken stubbles are reduced, and the possibility that bast fiber is wound into the rotating shaft of the rotating header and wound is reduced.

The invention discloses a three-degree-of-freedom adjusting header based on multi-sensor fusion, and the header comprises a cutting execution mechanism which is used for executing a cutting action; the lifting adjusting mechanism is connected with the cutting executing mechanism and used for adjusting the height of the cutting executing mechanism; the inclination angle adjusting mechanism is connected with the lifting adjusting mechanism; the pitching adjusting mechanism is connected with the inclination angle adjusting mechanism; the vehicle body is connected with the pitching adjusting mechanism; the profiling mechanism is connected with the cutting executing mechanism; and the detection and control module is used for establishing an adjustment model by detecting the field environment and controlling the lifting adjustment mechanism, the inclination angle adjustment mechanism, the pitching adjustment mechanism and the profiling mechanism to move through the adjustment model so as to realize attitude adjustment. The problems that an existing header is insufficient in precision, low in response speed and difficult to meet the precise profiling requirement under the complex terrain are solved.

A harvester header height keeping structure comprises a header serving as a harvesting part of a harvester, a height adjusting device used for adjusting the height of the header above the ground, a control module used for driving the height adjusting device to adjust the height of the header above the ground in real time according to feedback information, and a horizontal measuring device used for monitoring the inclination degree of the harvester relative to the ground. The angle sensor is used for monitoring the inclination degree of the header relative to the harvester, and the control structure is used for inputting and modifying the preset header height. The height of the header is intelligently and automatically adjusted, so that the harvesting efficiency is improved, and the crop loss is reduced.

The utility model discloses a vertical header clamping conveying chain tensioning device and a corn harvester, and relates to the technical field of agricultural machinery, the vertical header clamping conveying chain tensioning device comprises a tensioning seat and a tensioning support which are located at the two ends of a conveying chain, the tensioning seat is fixedly connected with a driving chain wheel of the conveying chain, and the tensioning support is fixedly connected with a driven chain wheel; a pull rod capable of axially moving is connected between the tensioning seat and the tensioning support, a tensioning pressure spring is sleeved outside the pull rod, one end of the tensioning pressure spring is fixedly connected with the tensioning seat, and the other end of the tensioning pressure spring acts on the tensioning support; the tensioning pressure spring is arranged between the tensioning seat and the tensioning support to be matched with the pull rod, and the tensioning support can be driven by elastic force of the tensioning pressure spring when the conveying chain is loosened, so that a driven chain wheel of the conveying chain is adjusted in a self-adaptive mode, the conveying chain is in a tensioning state, conveying failure is avoided, and the service life of the conveying chain is prolonged. And the stability of the header of the harvester in operation is effectively improved.

A control for the endless set of a rotating harvester head includes a train of transmission stages that encircle on one side behind the gathering channel, rises upward to pass in a horizontal-transverse direction towards the medium above the tray in which the header-conveyors of the head are found, to finally be vertically lowered by a drop-down box that takes the axis of the augers. In turn, the drop box includes two reducing stages to oil-bath gears that concentrate much of the speed reduction coming from the power take-off at the inlet and, likewise, has a construction that reduces the interference in the passage of the harvest of the tray to the gathering channel. Patters located in the innermost turn of the auger on each side of the drop box can drive the crop to change 90° towards the gathering channel, further reducing interference when the flow rate is important.

A hydraulic flail knife corn header comprises a header rack, two gap bridge shafts are symmetrically arranged at the two ends of the rear side of the header rack, and a plurality of ear picking units and a feeding auger are installed on the header rack side by side. The outer ends of the two gap bridge shafts are in transmission connection with input shafts of the ear picking units respectively, and the input shaft of the ear picking unit located at one end is in transmission connection with one end of the feeding auger. The device is characterized in that a hydraulic motor is mounted in the middle of a right ear picking support of each ear picking unit, and lower flail knives are mounted at the lower ends of the hydraulic motors respectively; a transfer case is mounted in the middle of each gap bridge shaft, a hydraulic pump is in transmission connection with each gap bridge shaft through the corresponding transfer case, the hydraulic pumps are variable load-sensitive pumps and are connected with the corresponding hydraulic motors through load-sensitive valves, and feedback oil ports of the load-sensitive valves are communicated with control ports of the hydraulic pumps. The header can meet the high-speed rotation of the lower flail knife, is compact in structure, reduces the cost, can save the installation space, and facilitates the reasonable layout of a narrow space.

The utility model discloses a universal type windrower and a windrower. The universal type windrower comprises a rack, a seedling cutting mechanism, a front seedling discharging mechanism, a rear seedling discharging mechanism and a driving device, one end of the front seedling discharging mechanism is connected to the front end of the rack, and the other end is connected to a stand column in the middle of the rack; one end of the rear seedling discharging mechanism is rotationally connected to a stand column in the middle of the rack, the other end of the rear seedling discharging mechanism is connected to the rear portion of the rack through an adjusting assembly so that the rear seedling discharging mechanism can be vertically adjusted at the rear end of the rack, and the rear seedling discharging mechanism and the front seedling discharging mechanism are horizontal or form an included angle; each of the front-row seedling mechanism and the rear-row seedling mechanism at least comprises a group of transverse conveying components, the driving device is in driving connection with one end of each transverse conveying component, and the other end of each transverse conveying component extends to the seedling outlet. Compared with the prior art, the angle of the rear seedling discharging mechanism can be adjusted according to the height of crops so as to meet the harvesting requirements of the crops with different heights, and therefore the universality of the cutting and drying platform is guaranteed.

The invention belongs to the field of agricultural machinery, and particularly discloses an automatic profiling device for a flexible header of a grain harvesting machine, which comprises a mechanical device, a hydraulic system and a control system, the mechanical device comprises a header, a profiling support arm assembly and a gap bridge; the header is mounted at the front end of the gap bridge; the profiling support arm assembly comprises a support arm welding part, a support arm shaft and a shock absorber; the shock absorbers are installed at the two ends of the supporting arm shaft, and one end of the supporting arm welding part is connected with the header through the supporting arm shaft. The other end of the support arm welding part is mounted on a ground contact plate of the header; the hydraulic system is mounted on the profiling support arm assembly; the control system is connected with the header; according to the profiling device, the three angle sensors are installed at the left end and the right end of the header respectively and transmit the angle between the cutting knife and the ground and the angle between the header and the ground in the left-right transverse direction to the controller, the supporting arm at the position is adjusted, the purpose of adjusting the header is achieved, and the situation that the header makes contact with the ground and is damaged is avoided.

A stalk roll having twelve flutes extending radially from the main cylinder along the length of the main cylinder. Within the row unit opposing stalk rolls cooperate to engage and capture the corn stalk, thereafter, controlling and processing the corn stalk. The flutes may be configured with differing edges to facilitate control and movement of the stalk to the point of ear separation within the row unit. The flutes may be configured such that opposing compressive forces acting on the exterior of the stalk at approximately 180° of separation operate to implode the stalk while sharp edges on the flutes operate to cut the stalk into small segments which are deposited on the ground for decomposition.

The invention provides a hydraulic control system and method for a folding corn header and a harvester. A hydraulic control system of a folding corn header comprises an ear picking plate gap adjusting oil cylinder, a first hydraulic lock, a folding oil cylinder, a double-balance valve, a flow distributing and collecting valve, an electromagnetic reversing valve, a sequence valve, a divider shield tilting oil cylinder, a second hydraulic lock and a hydraulic locking oil cylinder. The first hydraulic lock, the double-balance valve, the flow distributing and collecting valve, the sequence valve and the second hydraulic lock are respectively connected with the electromagnetic directional valve through pipelines, the ear picking plate gap adjusting oil cylinder is connected with the first hydraulic lock through a pipeline, the double-balance valve is connected with the flow distributing and collecting valve through a pipeline, and the sequence valve is connected with the second hydraulic lock through a pipeline. The folding oil cylinder is connected with the double-balance valve through a pipeline, the second hydraulic lock is connected with the sequence valve through a pipeline, and the divider shield tilting oil cylinder and the hydraulic locking oil cylinder are connected with the second hydraulic lock through pipelines.

The utility model discloses an up-and-down lifting cutter mechanism, which relates to the technical field of harvesters and comprises a header, a first motor and a second motor are respectively and fixedly mounted on the left and right end faces of the header close to the front end, and the output end of the first motor is fixedly connected with a first reciprocating lead screw which is fixedly connected with a second reciprocating lead screw which is fixedly connected with a second reciprocating lead screw. The lower end of the first reciprocating lead screw is rotationally connected with a first base, the first base is fixedly connected with the header, the output end of the second motor is fixedly connected with a second reciprocating lead screw, the lower end of the second reciprocating lead screw is rotationally connected with a second base, and the second base is fixedly connected with the header. The first reciprocating lead screw and the second reciprocating lead screw are driven by the first motor and the second motor respectively to rotate, the first threaded block and the second threaded block move up and down, and therefore the height of the cutting knife is accurately controlled, fine adjustment can be conducted according to crops of different heights, it is ensured that the stubble cutting height is appropriate, and the harvesting quality is improved.

The present application relates to a kind of ear stem harvesting header and corn harvester, including cutter and multiple feeding channels, also including grass removal mechanism, grass removal mechanism includes grass removal auger, and grass removal auger includes auger shaft and multiple auger blades, each section of auger blade is fixed on the outer wall of auger shaft spirally, multiple auger blades are arranged at intervals, and are respectively used to transport weed to any end of auger blade;Grass removal mechanism is set in the rear of cutter, and multiple auger blades are one-to-one corresponding below multiple feeding channels.The beneficial effect is: auger blade is multiple and arranged at intervals, and the weed at one auger blade is transported to any end by corresponding auger blade, and falls in the position between two auger blades under the action of gravity, and will not be moved to the next weed entry along the grass removal auger, so as to effectively avoid the weed accumulation and jam in grass removal auger.

The utility model discloses an electric control system for steering of a harvester and lifting of a header, and belongs to the technical field of agricultural machinery. An electric control operation device is connected with a steering controller, converts operation of a driver into signals and transmits the signals to the steering controller; the steering controller is respectively connected with the header lifting electromagnetic valve, the proportional electromagnetic relief valve and the left-right steering electromagnetic valve; after receiving the signal of the steering controller, the header lifting electromagnetic valve enables the header lifting oil cylinder to stretch out and draw back; the proportional electromagnetic overflow valve adjusts the overflow value by receiving different signals of the steering controller, changes the stroke of an ejector rod of the left-turning oil cylinder or the right-turning oil cylinder, and adjusts the turning radius. The left-right steering electromagnetic valve enables the left-turning oil cylinder or the right-turning oil cylinder to stretch out and draw back after receiving a signal of the steering controller. According to the utility model, by pressing the key or shifting the handle, the header is lifted, and the small turning and large turning functions are fixed, so that the operation is more convenient and humanized; meanwhile, integrated control over electric lifting and steering of the header is achieved, and the electric control degree is high.

This invention relates to a silage harvesting system and a silage harvester. The silage harvesting system includes a frame and, mounted on the frame, a silage cutter head, a conveying module, a feeding module, a chopping module, a throwing module, and a throwing cylinder. The conveying module is located behind the silage cutter head and conveys the harvested crop backward. The feeding module is located behind the conveying module and feeds the crop backward. The chopping module is installed behind the feeding module and chops the fed crop before conveying it backward to the throwing module. The throwing cylinder is installed behind the throwing module, which is located behind the chopping module and throws the chopped material through the throwing cylinder. This invention can improve the feeding amount and conveying efficiency. Moreover, the rear feeding and chopping modules can compact and cut the fed stalks. The chopped material is thrown backward through the throwing module and the throwing cylinder. The throwing cylinder is located in the middle and rear part of the vehicle and has a parabolic shape, resulting in a long throwing distance and enabling the function of following the vehicle to catch hay.

An electrically driven agricultural harvesting platform (1) that replaces commonly known platforms that use mechanical power transmission. The use of an electric drive guarantees better efficiency during harvesting processes, which is carried out through an assembly of interconnected elements comprising: a generator (4), a control module (5) that drives and controls additional elements such as motors (8) and a platform sensor (6) that are connected by means of cables (7) that send logical and power information between the different elements.

The utility model provides an integrated knife rest and a corn header, which relates to the technical field of agricultural production devices, and comprises a rotating shaft, a hoop body, a fixed bearing, a lower cutterhead and an upper cutterhead, a connecting hole is formed in the center position of the hoop body, the rotating shaft penetrates through the connecting hole and drives the hoop body to rotate, a fixed bearing is fixedly connected to the top end of the hoop body and is cylindrical, and a lower cutter head and an upper cutter head are sequentially welded to the peripheral surface of the fixed bearing and are arranged in parallel. According to the integrated knife rest and the corn header, the technical problem that in the prior art, an upper layer and a lower layer are split clamping plates, so that a blade between the two layers of clamping plates longitudinally displaces and shakes is solved. And the technical effect of uniformly cutting the corn straws is achieved.

This invention belongs to the field of agricultural machinery automation technology, specifically relating to a method based on RTK This invention relates to a real-time stubble height measurement method for wheeled harvesters. The method involves measuring the machine's pitch angle and altitude using a positioning and navigation system; measuring the header's altitude using a header positioning antenna mounted on the header; measuring the header's rotation angle relative to the machine body using an angle sensor installed in the grain conveying channel; and optimizing the header's ground clearance using a Kalman filter based on a mathematical model, based on the machine's pitch status. The stubble height is then output to the operation control system. The sensor technology is mature, highly accurate, and has a reliable installation structure, allowing direct measurement of the header's ground clearance (stubble height). Simultaneously, for harvesters with... GPS - RTK For autonomous harvesters with positioning and navigation systems, only the installation of a positioning antenna and an angle sensor at the header is needed to calculate the real-time stubble height of the agricultural machine and feed it back to the operation control system.

The invention relates to the technical field of agricultural machinery, in particular to a front straw returning and fine crushing treatment device of a harvester, is particularly suitable for synchronous crushing and uniform straw returning operation of corn crops in the mechanical harvesting process, and discloses the front straw returning and fine crushing treatment device of the harvester. The invention relates to a straw smashing and scattering device which is composed of a header frame linearly arranged along a main transmission shaft, the main transmission shaft penetrates through the two ends of the header frame and is used for receiving power output from a harvester, and by optimizing the structural design and the power transmission mode, the problems that in the prior art, straw processing efficiency is low, smashing is not thorough, and scattering is not uniform are solved. Therefore, the utilization rate of straw resources is increased, environmental pollution is reduced, and green agriculture and sustainable development are promoted.

The utility model belongs to the field of agricultural equipment, particularly relates to a seed production corn harvester, and aims to solve the problems of low efficiency, high labor intensity, seasonal shortage of labor force in a suitable seed harvesting period and easiness in damage to seed ears in mechanical harvesting in the conventional manual harvesting. Comprising a rack, a walking device, a power device, an operation device, a header, a lifting device, an impurity discharging device, a peeling device, a cleaning device, a spike collecting box and other key components. The header adopts an external expansion sprocket flexible plate type design, and is equipped with a steel matrix rubber-coated arc-shaped ear picking plate, a'rubber + steel 'clamping conveying chain and a six-edge stem pulling roller, so that low-loss and high-efficiency ear picking is realized. The peeling device achieves the low-loss and high-efficiency peeling effect through flexible peeling, rubbing and speed reduction combined peeling rollers, the seed corn harvester is beneficial to promoting the mechanization process of the seed corn industry, the problem of seasonal shortage of labor force is solved, and the agricultural production efficiency and benefits are improved.

The invention discloses a coarse cereal harvesting header, and relates to the field of agricultural machinery, the coarse cereal harvesting header comprises a header, the header is provided with a plurality of ear picking units, each ear picking unit comprises an ear picking frame and a seedling pulling chain, the seedling pulling chain is tensioned and driven by a driving chain wheel and a driven chain wheel, and the driven chain wheel is installed on an adjusting assembly; the adjusting assembly is used for adjusting the position of the driven chain wheel to tension the reel chain; a plurality of first guide wheels and a plurality of second guide wheels are further arranged on the upper surface of the ear picking frame, the wheel faces of the first guide wheels and the wheel faces of the second guide wheels abut against rollers of the seedling pulling chains, and deviation rectifying pieces are arranged on the upper surfaces and the lower surfaces of the first guide wheels at the positions corresponding to the outer sides of the inner chain plates and the outer chain plates in an annular array mode. According to the device, the design that tensioning is conducted after following correction is adopted, when the reel chain sinks, the correction piece dynamically follows the reel chain to adjust the position, the adjusting assembly synchronously adjusts tension, the situation that local stress is too large during tensioning is avoided, correction accuracy is guaranteed, and in addition, deviation can be restrained in advance.

The utility model discloses a balanced cutter vibration device, which comprises a power wheel, the rotating shaft is connected with the power wheel so as to drive the rotating shaft to rotate; the swing shaft is connected with the rotating shaft through a swing ring device, so that the swing shaft swings back and forth; the cutting knife is installed at the end, away from the rotating shaft, of the swing shaft through a connecting arm, and the swing shaft swings back and forth to drive the cutting knife to conduct cutting work; the balance weight piece is installed on the swing shaft, and the product of the mass of the cutting knife and the vertical distance from the cutting knife to the axis of the swing shaft is equal to the product of the mass of the balance weight piece and the vertical distance from the gravity center of the balance weight piece to the axis of the swing shaft. Through the installation of the counterweight part, the mass of the counterweight part multiplied by the vertical distance from the gravity center of the counterweight part to the axis of the swing shaft is equal to the unbalance amount of the cutting knife, so that the vibration of the cutting knife is balanced, the stability of the machine is improved, and the strength of a connecting part is reduced.